Demographics of Linn County, Missouri

Linn County, Missouri had 11,815 people on July 1, 2025, by the Census Bureau’s estimate: −39 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Linn County, in four figures

11,815
Population: July 1, 2025, Vintage 2025 estimate.; −0.3%
Change since July 2020: −39 people.; 42.1 ±0.8
Median age: ACS 2020–⁠2024.; $61,635 ±$5,399
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Linn County, Missouri's population shrank 0.3% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Linn County, Missouri's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Linn County, Missouri's population shrank 0.3% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Linn County, Missouri's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	11,854	100.0	100.0
2021	11,843	99.9	100.2
2022	11,840	99.9	100.7
2023	11,791	99.5	101.6
2024	11,874	100.2	102.5
2025	11,815	99.7	103.1

3 more columns on a wider screen

Population of Linn County, Missouri on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	11,854	−17	−7	0	−11
2021	11,843	−11	−72	0	+52
2022	11,840	−3	−38	0	+40
2023	11,791	−49	−51	0	+5
2024	11,874	+83	−59	0	+143
2025	11,815	−59	−63	−1	+5

Age, 2020–2024

The median age is 42.1 ±0.8: for men 40.9 ±0.7 and for women 43.5 ±0.8. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Linn County by age, ACS 2020–2024
Age	People	Share	Missouri	United States
Under 5	659 ±21	5.6% ±0.2	5.8% ±<0.1	5.6% ±<0.1
5 to 17	2,105 ±171	17.8% ±1.4	16.6% ±0.1	16.3% ±<0.1
18 to 24	857 ±106	7.2% ±0.9	9.1% ±0.1	9.1% ±<0.1
25 to 44	2,723 ±172	23.0% ±1.4	26.0% ±0.1	26.9% ±<0.1
45 to 64	2,928 ±184	24.7% ±1.6	24.6% ±0.1	24.8% ±<0.1
65 and over	2,580 ±195	21.8% ±1.6	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $61,635 ±$5,399, and income per person $34,377 ±$3,237, in 2024 dollars. The median is $70,702 ±$325 in Missouri and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Linn County by income, ACS 2020–2024
Household income	Households	Share	Missouri	United States
Under $25,000	859 ±143	17.9% ±2.9	15.8% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,030 ±181	21.5% ±3.7	19.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	930 ±150	19.4% ±3.0	17.4% ±0.2	15.5% ±<0.1
$75,000 to $99,999	591 ±110	12.3% ±2.2	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	785 ±147	16.4% ±3.0	17.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	316 ±104	6.6% ±2.2	8.2% ±0.1	9.6% ±<0.1
$200,000 or more	290 ±130	6.0% ±2.7	8.7% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Linn County by age, ACS 2020–2024
Age	Below poverty	Rate	Missouri	United States
All ages	1,604 ±360	13.7% ±3.1	12.6% ±0.2	12.5% ±0.1
Under 18	534 ±150	19.5% ±5.2	15.8% ±0.4	16.1% ±0.1
18 to 59	644 ±172	11.2% ±2.9	12.0% ±0.2	11.6% ±0.1
60 and over	426 ±94	13.3% ±2.8	10.9% ±0.2	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Linn County, ACS 2020–2024
Measure	Linn County	Missouri	United States
Housing units	5,988 ±24	2,825,287 ±1,043	143,775,355 ±10,234
Occupied	80.2% ±2.9	88.8% ±0.2	89.9% ±0.1
Vacant	19.8% ±2.9	11.2% ±0.2	10.1% ±0.1
Owner occupied	78.5% ±2.5	68.1% ±0.3	65.2% ±0.3
Renter occupied	21.5% ±2.9	31.9% ±0.2	34.8% ±0.1
Median home value	$123,300 ±$12,999	$230,300 ±$880	$332,700 ±$236
Median gross rent	$620 ±$103	$1,033 ±$6	$1,413 ±$2
Median year built	1964 ±2	1978 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Linn County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Missouri	United States
Hispanic or Latino	352 ±0	3.0% ±<0.1	5.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	11,100 ±33	93.7% ±0.3	76.3% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	27 to 167	0.2% to 1.4%	10.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	14 to 90	0.1% to 0.8%	2.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	10 to 42	0.1% to 0.4%	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 32	0% to 0.3%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 19	0% to 0.2%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	213 ±75	1.8% ±0.6	4.8% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Linn County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Missouri	United States
Born in the state	9,167 ±365	77.3% ±3.1	65.6% ±0.2	57.3% ±<0.1
Born in another state	2,506 ±373	21.1% ±3.1	29.1% ±0.1	26.9% ±<0.1
Born a citizen outside the states	9 to 69	0.1% to 0.6%	0.8% ±<0.1	1.7% ±<0.1
Born abroad	140 ±48	1.2% ±0.4	4.5% ±0.1	14.1% ±<0.1
Naturalized citizens	35 to 125	0.3% to 1.1%	2.3% ±0.1	7.4% ±<0.1
Not citizens	22 to 98	0.2% to 0.8%	2.2% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Linn County among the counties of Missouri

77th of 115 by population, July 2025. Every one is listed on the Missouri page.

Counties of Missouri near Linn County in population, July 2025
County	July 2025	Change since 2020
Pemiscot County	14,465	−7.2%
Osage County	13,611	+2.7%
Madison County	12,858	+1.9%
Douglas County	12,342	+6.4%
Mississippi County	12,003	−1.1%
Linn County	11,815	−0.3%
Barton County	11,795	+1.5%
Montgomery County	11,590	+2.6%
Wayne County	10,782	−1.4%
Ripley County	10,717	+0.4%
Bollinger County	10,646	+0.9%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026